#E4F5FC
Closest named color: Anti-Flash White (#EDF2F4). oklch(96% 0.02 224.3), rgb(228, 245, 252).
Aa
Black text reads best on this color (18.76:1).
About this color
#E4F5FC is a very light close to neutral grey. In OKLCH its lightness is 96%, its chroma 0.020. It has too little chroma to lean warm or cool. The nearest named color is Anti-Flash White (#EDF2F4), ΔE 0.014 away. Black text reads best on it, at 18.76:1.
| Hue family | Neutrals |
| Lightness | very light (96%) |
| Chroma | close to neutral grey (0.020) |
| Temperature | neutral |
| Nearest name | Anti-Flash White (#EDF2F4) |
| Black text | 18.76:1 |
| White text | 1.11:1 |
Values
| HEX | #E4F5FC |
| RGB | rgb(228, 245, 252) |
| HSL | hsl(198, 80%, 94%) |
| OKLCH | oklch(96% 0.02 224.3) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #E4F5FC | 1.11:1 | Fails | Lc 0.0 | Not readable |
| Black text on #E4F5FC | 18.76:1 | AAA | Lc 98.3 | Preferred for body text |
| #E4F5FC text on white | 1.11:1 | Fails | Lc 0.0 | Not readable |
| #E4F5FC text on black | 18.76:1 | AAA | Lc -99.4 | Preferred for body text |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 50.
-
Step 50
50 (this color)
#E4F5FC
oklch(96% 0.02 224.3)
-
Step 100
100
#E5EBEE
oklch(93.6% 0.008 228.9)
-
Step 200
200
#D0DBE0
oklch(88.5% 0.014 226.6)
-
Step 300
300
#AFC5CD
oklch(80.9% 0.026 221.6)
-
Step 400
400
#85A7B4
oklch(70.7% 0.042 223.2)
-
Step 500
500
#6691A2
oklch(63.2% 0.053 224.5)
-
Step 600
600
#4C7B8D
oklch(55.6% 0.058 224.4)
-
Step 700
700
#3D6778
oklch(49% 0.054 225.9)
-
Step 800
800
#335461
oklch(42.6% 0.044 225)
-
Step 900
900
#2D464F
oklch(37.8% 0.034 222.5)
-
Step 950
950
#1B292E
oklch(27% 0.021 222)
#E4F5FC with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #F1F4FC | 0.017 |
| Deuteranopia (no green cones) | #EDF1FC | 0.015 |
| Tritanopia (no blue cones) | #DEF7F7 | 0.013 |
| Achromatopsia (no color) | #F2F2F2 | 0.020 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #E4F5FC
#E4F5FC
oklch(96% 0.02 224.3)
- #FEEEE7
#FEEEE7
oklch(96% 0.02 45.3)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #E4F5FC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Anti-Flash White #EDF2F4 ΔE 0.014
- Alice Blue #F0F8FF ΔE 0.018
- White Smoke #F5F5F5 ΔE 0.023
- Light Cyan #E0FFFF ΔE 0.025
- Ghost White #F8F8FF ΔE 0.028
- Ice Blue #D7FFFE ΔE 0.028
- Very Pale Blue #D6FFFE ΔE 0.029
- Very Light Blue #D5FFFF ΔE 0.029
Use #E4F5FC in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.